At old mining sites, waste and tailings ponds could be processed for their remaining resources.
在旧矿场，废物和尾矿池可以处理剩余资源。
Tailing Pond
原声例句
Reel知识卷轴
Aerial America 《俯瞰美国》
In order to keep this water source pure, these tailings ponds have to be carefully designed and managed, so that mining chemicals don't leach into the ground water below and pollute the watershed of the Continental Divide.
为了保持这个水源的纯净，这些尾矿池必须经过精心设计和管理，这样采矿化学品才不会渗入下面的地下水中，污染大陆分水岭的分水岭。
英语百科
Tailings
（重定向自Tailing Pond）
Tailings, also called mine dumps, culm dumps, slimes, tails, refuse, leach residue or slickens, are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are distinct from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed. The amount of tailings can be large, ranging from 90–98% for some copper ores to 20–50% of the other (less valuable) minerals.
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